Question

tuberculosis from consumption to molecular diagnosis

1. which of the following statements is true regarding persons with latent tuberculosis infections?

a○they can spread the disease.
b○they have symptoms of tuberculosis.
c○they usually have a positive culture test.
d○they usually have a positive skin test.

Explanation:

Latent tuberculosis infection means the person has the TB - causing bacteria in their body but is not sick and cannot spread the disease. They do not have symptoms. However, they usually have a positive skin test or other tests like interferon - gamma release assays. A positive culture test is more indicative of active TB rather than latent TB.

Answer:

D. They usually have a positive skin test.